# Splitwise AI integration on Definable

> Splitwise helps you split bills and expenses with friends and family.

## What this connects

Splitwise helps you split bills and expenses with friends and family.

Vendor: https://splitwise.com

## Tools available

**27** tools available. First 12:

- `SPLITWISE_ADD_FRIEND` — Add Friend — Tool to add a new friend to Splitwise. Use when you have the friend's email and name details ready.
- `SPLITWISE_ADD_USER_TO_GROUP` — Add User to Group — Tool to add a user to a group. Use when you need to add an existing Splitwise user to a specific group. Note: 200 OK does not indicate success; always check the response 'success' field.
- `SPLITWISE_CREATE_COMMENT` — Create Comment — Tool to create a comment on a specific expense. Use when you need to add a comment or note to an existing expense.
- `SPLITWISE_CREATE_EXPENSE` — Create Expense — Tool to create a new Splitwise expense. Use when you need to record a payment or bill in a group or between users. Provide exactly one of split_equally or users for shares — supplying both or neither causes a validation error and no expense is created.
- `SPLITWISE_CREATE_FRIENDS` — Create Friends — Tool to add multiple friends at once to Splitwise. Use when you need to add several friends in a single operation.
- `SPLITWISE_CREATE_GROUP` — Create Group — Tool to create a new group in Splitwise. Use when you need to create a group for tracking shared expenses. The current user is automatically added to the group. You can optionally add other members during creation.
- `SPLITWISE_DELETE_COMMENT` — Delete Comment — Tool to delete a comment by its ID. Use after confirming you have a valid comment ID.
- `SPLITWISE_DELETE_EXPENSE` — Delete Expense — Tool to delete an existing expense by its ID. Deletion is irreversible — no undelete capability exists. Use after confirming you have the correct expense ID. Inspect the response's `success` and `error` fields to verify deletion succeeded; failures (e.g., user lacks owner/participant permissions) are surfaced there.
- `SPLITWISE_DELETE_FRIEND` — Delete Friend — Tool to delete an existing friend by ID. Use when you need to remove a friend relationship by its user ID. Call after confirming the correct friend ID.
- `SPLITWISE_DELETE_GROUP` — Delete Group — Tool to delete a group and all associated records by its ID. Use when you need to permanently remove a group and its expenses. Call after confirming the correct group ID.
- `SPLITWISE_GET_CATEGORIES` — Get Categories — Tool to retrieve expense categories. Use when you need to list available categories before creating an expense.
- `SPLITWISE_GET_COMMENTS` — Get Comments — Tool to retrieve all comments associated with a specific expense. Use when you need to view comments on an expense, including both system-generated updates and user-authored messages.

## Auth

Auth schemes: `OAUTH2`, `API_KEY`. Managed by Definable: `OAUTH2` — no client credentials required from the user.

## How agents use Splitwise

Inside a Definable workflow, Splitwise is one of the tools the **Distributor specialist** can call. Example coordination patterns:

- **Researcher → Splitwise** — the Researcher (GPT-5.5) pulls context from Splitwise (records, threads, documents), synthesises findings, and briefs the rest of the team.
- **Writer → Distributor → Splitwise** — the Writer (Claude Opus 4.7) drafts copy in brand voice, the Verifier passes it, then the Distributor writes the result into Splitwise (create record, post message, draft email).
- **Designer / Engineer → Distributor → Splitwise** — the Designer ships an asset or the Engineer ships a code change, the Distributor delivers it via Splitwise (attach file, open PR comment, post status).

The Verifier checks every Splitwise call. On rate limit, schema drift, or auth refresh it self-heals and retries — the workflow completes without manual intervention.

## Categories

- payment processing — https://definable.ai/apps/category/payment-processing/
- accounting — https://definable.ai/apps/category/accounting/

## Related

- HTML page: https://definable.ai/apps/splitwise/
- Same category (payment processing): https://definable.ai/apps/category/payment-processing/
- All integrations: https://definable.ai/apps/
- Workflow (multi-agent loop): https://definable.ai/workflow/
- Apps llms.txt index: https://definable.ai/llms-apps.txt